Home / 15,730,721.94-21,708,806.85-8,855,454.90

Finding the Fourth Proportional to 15,730,721.94, 21,708,806.85 and 8,855,454.90

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Solution

The fourth proportional to 15,730,721.94, 21,708,806.85 and 8,855,454.90 is: 12,220,758.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,730,721.94 : 21,708,806.85 = 8,855,454.90 : x
  2. Step 2: Convert to fraction form
    15,730,721.94/21,708,806.85 = 8,855,454.90/x
  3. Step 3: Cross multiply
    15,730,721.94x = 21,708,806.85 × 8,855,454.90
  4. Step 4: Simplify right side
    15,730,721.94x = 192,241,359,992,986.09
  5. Step 5: Solve for x
    x = 192,241,359,992,986.09/15,730,721.94
  6. Step 6: Final answer
    x = 12,220,758.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.